DE2406990A1 - Cement-bound building ceramics - reinforced by immersing before firing, in aq soln of alkali (ne earth) cpd opt contg boron - Google Patents
Cement-bound building ceramics - reinforced by immersing before firing, in aq soln of alkali (ne earth) cpd opt contg boronInfo
- Publication number
- DE2406990A1 DE2406990A1 DE19742406990 DE2406990A DE2406990A1 DE 2406990 A1 DE2406990 A1 DE 2406990A1 DE 19742406990 DE19742406990 DE 19742406990 DE 2406990 A DE2406990 A DE 2406990A DE 2406990 A1 DE2406990 A1 DE 2406990A1
- Authority
- DE
- Germany
- Prior art keywords
- cement
- alkali
- earth
- boron
- cpd
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
Description
Verfahren zum Herstellen von Baukeramik Die Erfindung betrifft ein Verfahren zur Herstellung von Baukeramik aus zementgebundenen Formlingen. Method for producing building ceramics The invention relates to a Process for the production of building ceramics from cement-bound moldings.
Es ist bekannt, daß zementgebundene Formlinge beim Brennen ihre Festigkeit verlieren und sich dann leicht zerreiben lassen. Das gleiche gilt für zementgebundene Formlinge, die in der Masse Bimsmehl, Lavamehl oder Quarzmehl enthalten.It is known that cement-bonded moldings lose their strength when fired lose and then be easily crushed. The same goes for cementitious Moldings that contain pumice flour, lava flour or quartz flour in the mass.
Der Erfindung legt die Aufgabe zugrunde, ein Verfahren zur Herstellung von Baukeramik aus zementgebundenen Formlingen zu schaffen, bei der durch das Brennen keine Abnahme, sondern eine Zunahme der Festigkeit erzielt wird.The invention is based on the object of a method for production of building ceramics from cement-bound moldings, in which by firing no decrease but an increase in strength is achieved.
Das erfindungsgemäße Verfahren besteht darin, daß die Formlinge nach dem Abbinden und Trocknen für eine vorbestimmte Zeit in eine wässrige Lösung von Alkali-, Erdalkali- oder Borverbindungen oder auch Mischungen derselben getaucht, dann zum Abtropfen gestellt, getrocknet und im keramischen Ofen gebrannt werden. Zeit und Temperatur des Brennvorganges hängen von der Konzentration und Art der Lösung sowie der Zeit ab, während der die Formlinge in der Lösung belassen wurden.The inventive method consists in that the moldings after setting and drying in an aqueous solution of for a predetermined time Immersed alkali, alkaline earth or boron compounds or mixtures thereof, then left to drain, dried and fired in a ceramic oven. The time and temperature of the firing process depend on the concentration and type of Solution and the time during which the briquettes were left in the solution.
Während des kuchens wird ein Teil der Lösung von dem Zementskelett des Formlings aufgesaugt. Nach dem Trocknen bleiben dann die gelösten Verbindungen in fester Borm in dem Zementskelett zurück. Während des Brandes gehen die zurückgebliebenen festen Bestandteile der Lösung dann mit dem Zement feste Silikatverbindungen ein, die den Produkten ihre gewünschte Festigkeit geben.During the cake, some of the solution is removed from the cement skeleton sucked up the molding. After drying, the loosened compounds remain back in firm form in the cement skeleton. During the fire, those left behind leave solid components of the solution then solid silicate compounds with the cement, which give the products their desired strength.
Vorzugsweise ist dabei vorgesehen, daß der Bormlingsmasse in noch plastischem Zustand vor dem Abbinden ein Zuschlag von Bimsmehl; Lavamehl oder Quarzmehl zugegeben wird. Dadurch wird die Festigkeit des gebrannten Formlings abermals erheblich vergrößert.It is preferably provided that the Bormling mass in still plastic state before setting, an addition of pumice powder; Lava flour or quartz flour is admitted. This will make the Strength of the fired molding again considerably enlarged.
Weiterhin wird erfindungsgemäß vorgeschlagen, daß die getrocknet ten Formlinge vor dem Brennen engobiert und/oder glasiert werden.Furthermore, it is proposed according to the invention that the dried th Moldings are engobed and / or glazed before firing.
Beispiel I Aus einer Formmasse von Zement mit Bimsmehl wurde ein Formlinge in Gestalt einer Diele hergestellt und zum Abbinden und Trocknen gestellt. Danach wurde der Formling für die Zeit von einer Stunde und 45 Minuten in eine 5 %ige Boraxlösung gelegt, dann herausgenommen und nach dem Abtropfen über Nacht in einem Grockenschrank bei 800 C getrocknet. Die Ansichtfläche der Diele wurde dann mit einer weißen Sinterengobe überzogen, mit einer herkömmlichen Baukeramikglasur glasiert und bei ca. 1.1000 C im Gastunnelofen gebrannt. Die Festigkeit des Formlings wurde durch diesen Tauch- und Brennvorgang erheblich vergrößert.Example I A molding compound was made from cement with pumice powder made in the shape of a plank and put to set and dry. Thereafter the molding was immersed in a 5% borax solution for one hour and 45 minutes placed, then taken out and after draining overnight in a grocken cupboard dried at 800 C. The face of the plank was then covered with a white sintered engobe coated, glazed with a conventional building ceramic glaze and at approx. 1.1000 C fired in a gas tunnel kiln. The strength of the molding was increased by this immersion and the burning process is considerably enlarged.
Beispiel II Aus einer Formmasse aus Zement mit Lavamehl wurde ein Formling in Gestalt einer Platte hergestellt und nach dem Abbinden und Trocknen zwei Stunden in eine 5 ziege Boraxlösung gelegt, dann herausgenommen und nach dem Abtropfen über Nacht im Trockenschrank bei 800 C getrocknet. Der getrocknete Formling wurde dann mit einer durch Eupfer(II)oxid türkis gefärbten Sinterengobe überzogen, dann mit einer Baukeramikglasur versehen und bei ca. 1.1000 C im Gastunnelofen gebrannt.Example II A molding compound made of cement with lava flour became a Mold made in the shape of a plate and after setting and drying placed in a 5 goat borax solution for two hours, then taken out and after Drain in the drying cabinet overnight dried at 800 C. Of the The dried molding was then colored turquoise with an Eupfer (II) oxide Sintered engobe coated, then provided with a building ceramic glaze and at approx. 1.1000 C fired in a gas tunnel kiln.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742406990 DE2406990A1 (en) | 1974-02-14 | 1974-02-14 | Cement-bound building ceramics - reinforced by immersing before firing, in aq soln of alkali (ne earth) cpd opt contg boron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742406990 DE2406990A1 (en) | 1974-02-14 | 1974-02-14 | Cement-bound building ceramics - reinforced by immersing before firing, in aq soln of alkali (ne earth) cpd opt contg boron |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2406990A1 true DE2406990A1 (en) | 1975-09-04 |
Family
ID=5907353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19742406990 Pending DE2406990A1 (en) | 1974-02-14 | 1974-02-14 | Cement-bound building ceramics - reinforced by immersing before firing, in aq soln of alkali (ne earth) cpd opt contg boron |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2406990A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995034518A1 (en) * | 1992-12-15 | 1995-12-21 | SERVANT, Suzanne | Ceramic material based on volcanic lava and method of production |
-
1974
- 1974-02-14 DE DE19742406990 patent/DE2406990A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995034518A1 (en) * | 1992-12-15 | 1995-12-21 | SERVANT, Suzanne | Ceramic material based on volcanic lava and method of production |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OGA | New person/name/address of the applicant | ||
OHJ | Non-payment of the annual fee |